Beta testing team ?

Do you think that to create a team of beta testers would be a good idea ?

As I have only four computers at home and two hands it's very difficult for me to make directly new version free of bug because I can't test everything on a big range of setup.
Like I think that to publish buggy versions can annoy the user and can give a bad indication of MediaCar, it would be better to test new versions where there is big changes with a small beta testing team before publishing it.